Astronomy:NGC 6355

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NGC 6355
NGC 6355 seen by Hubble's ACS and WFC3.
Observation data (J2000 epoch)
ConstellationOphiuchus
Right ascension 17h 23m 58.6s[1][2]
Declination−26° 21′ 12″[1]
Distance8.54 ± 0.19 kpc (27.85 ± 0.62 kly)[3]
Apparent magnitude (V)8.6[4]
Apparent dimensions (V)4.20[4]
Physical characteristics
Absolute magnitude-8.07
Metallicity[Fe/H] = −1.39 ± 0.08[3] dex
Estimated age13.2 ± 1.1 Gyr[3]
Other designationsCr 330, GCL 63 and ESO 519-SC15
See also: Globular cluster, List of globular clusters

NGC 6355 is a globular cluster located in the constellation Ophiuchus.[5] It is at a distance of 28,000 light years away from Earth, and is currently part of the Galactic bulge.[3]

NGC was discovered by the German-born British astronomer William Herschel on 24 May 1784.[6] It was initially thought to be an open cluster, but its true nature as a globular cluster was later confirmed. It is a core-collapse cluster.[3]

See also

References

Template:NGC objects:6000-6499